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Table 1 Annual trips: number and kilometers, by age and yeara

From: The association between graduated driver licensing laws and travel behaviors among adolescents: an analysis of US National Household Travel Surveys

Person type Age (yr) Year Average number of annual trips (95 % CI) Average annual kilometers (95 % CI)
Driver of passenger vehicle 16 1995-1996 521 (444 – 598) 4,588 (3,814 – 5,364)
   2001-2002 518 (450 – 586) 5,208 (4,297 – 6,117)
   2008-2009 321 (268 – 375) 2,729 (2,115 – 3,343)
  17 1995-1996 897 (802 – 993) 9,685 (7,326 – 12,046)
   2001-2002 771 (695 – 848) 9,065 (7,047 – 11,082)
   2008-2009 624 (560 – 688) 6,025 (5,189 – 6,862)
  20-24 1995-1996 1,152 (1,104 – 1,201) 17,263 (16,032 – 18,493)
   2001-2002 1,038 (1,001 – 1,075) 17,424 (16,245 – 18,602)
   2008-2009 943 (899 – 987) 14,841 (13,770 – 15,913)
Passenger in passenger vehicle 16 1995-1996 779 (692 – 867) 10,564 (7,747 – 13,378)
  2001-2002 720 (649 – 790) 8,913 (7,733 – 10,092)
  2008-2009 560 (509 – 611) 9,384 (7,678 – 11,090)
  17 1995-1996 715 (641 – 788) 10,372 (7,269 – 13,475)
   2001-2002 580 (507 – 652) 8,779 (7,131 – 10,429)
   2008-2009 357 (313 – 400) 7,792 (5,615 – 9,971)
  20-24 1995-1996 361 (328 – 394) 7,269 (6,090 – 8,449)
   2001-2002 332 (306 – 357) 6,869 (5,860 – 7,879)
   2008-2009 199 (177 – 220) 3,697 (3,045 – 4,350)
Bus rider 16 1995-1996 117 (93 – 141) 1,421 (995 – 1,846)
  2001-2002 122 (99 – 146) 1,798 (1,136 – 2,457)
   2008-2009 114 (95 – 134) 1,831 (1,308 – 2,354)
  17 1995-1996 63 (47 – 78) 1,054 (665 – 1,444)
   2001-2002 76 (57 – 95) 1,231 (911 – 1,551)
   2008-2009 130 (105 – 155) 2,412 (1,622 – 3,204)
  20-24 1995-1996 29 (22 – 35) 431 (275 – 586)
   2001-2002 32 (25 – 39) 475 (280 – 669)
   2008-2009 32 (23 – 41) 462 (277 – 647)
Bicyclist 16 1995-1996 19 (9 – 29) 55 (14 – 95)
   2001-2002 12 (5 – 18) 37 (3 – 71)
   2008-2009 13 (9 – 18) 31 (19 – 43)
  17 1995-1996 14 (5 – 23) 18 (5 – 32)
   2001-2002 14 (4 – 24) 47 (8 – 84)
   2008-2009 9 (5 – 12) 24 (10 – 37)
  20-24 1995-1996 16 (9 – 23) 61 (11 – 111)
   2001-2002 6 (4 – 9) 16 (8 – 24)
   2008-2009 14 (8 – 21) 92 (40 – 142)
Pedestrian 16 1995-1996 145 (108 – 181) 164 (97 – 232)
   2001-2002 157 (128 – 185) 161 (129 – 192)
   2008-2009 196 (155 – 236) 246 (156 – 336)
  17 1995-1996 108 (82 – 134) 92 (64 – 117)
   2001-2002 127 (91 – 162) 177 (116 – 237)
   2008-2009 150 (114 – 186) 164 (126 – 204)
  20-24 1995-1996 99 (85 – 113) 80 (68 – 95)
   2001-2002 137 (121 – 153) 145 (122 – 169)
   2008-2009 124 (107 – 141) 140 (114 – 164)
  1. Abbreviation: CI confidence interval
  2. a Data from the National Household Travel Survey